Window.



No. 727,366. PATENTED MAY 5, 1903.

' J. HORSFIELD.

WINDOW.-

APPLIOATION FILED APR. 28, 1902. I0 MODEL 2 SHEETS-SHEET 1.

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WINDOW.

APPLIOA'I'ION IILED APB. 2a, 1902.

H0 MODEL.

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iatented May 5, 1903 ATEI FFICE.

JOHN IIORSFIELD, OF CHICAGO, ILLINOIS.

WINDOW.

SPECIFICATION forming part of Letters Patent No. 727,366, dated May 5,1903.

Application filctl April 28, 1902. Serial No. 105,118. (No model.)

To all whom. it may concern.-

Be it known that I, JOHN HORSFIELD, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Windows, of which thefollowing is a specification.

This invention relates to improvements in sliding windows,pivot-windows, and combined sliding and pivot windows, and has for itsobject the construction of windows of these types that will besubstantially wind-proof, that will be durable and efficient inoperation, and simple and economical in construction.

This invention consists in the various novel features and detailsofconstruction, which will be pointed out hereinafter and shown in theaccompanying drawings.

Figure l is an elevation of a sliding window constructed in accordancewith this invention, parts being broken away to show the hidden details.Fig. 2 is a horizontal sectional view of Fig. 1. Fig. 3 is a detailshowing a modified form of construction in which the groove in thesash-frame is dispensed with. Fig. is another detail showing a form ofconstruction similar to that of Fig. 3. Fig. 5 is a detail showing aone-leaf spring closurestrip and a groove in the sliding strip for thepulley-cord. Fig. 6 is a sectional detail showing difierent forms ofconstruction as applied to a metallic sash-frame. Fig. 7 is a sectionaldetail showing the position of the spring closure-strip when the sash isturned on its pivots.

A represents a window-frame of ordinary wood constructiomhaving groovesa. a for the sliding sashes B B. Metallic channels C are formed toslidingly fit inthe grooves a a, and are provided with tongues or heads0, formed by bending .the metal in a fold, as shown. These tongues enterinto channels or saw-cuts a in the frames.

D is a double-leaf spring closure-strip or jamb, constructed, as shown,with a tongue (1, formed by a fold in the metal taking into the grooveformed in the bead c, then the two leaves spread at an angle, as shownat d, to engage the beveled edges b of the sash, and again bent in at dto engage the sides of the channel C. The sash is pivoted on pins E,which pass through the sides thereof and are secured at the outer endsto lugs e in the channels C. The leaf of the spring-jamb D is perforated to allow the free turning of the pin and the flexing of thespring. Balance-cords F may be secured to the top of the channels C andengage with any suitable balance pulley or spring at the top of theframe. Bolts or catches G are provided either at the top of the sash orat any other suitable point,whereby the sash may be locked to thechannels to prevent turning when not desired. It will be observed thatwhen the sash is raised or lowered the entire metallic jamb will movetherewith, and the sash may be turned on the pivots at any point.

This invention is readily applied to old windows with but little change.Fig. 3 shows a convenient form for this purpose.- The sawcut in theframe is dispensed with and the sliding channel is provided withoutstanding folds to form a groove for the spring-jambs. When a moreperfect joint or weather-strip is desired, the form shown in Fig. 4. maybe used. In this instance a tongned strip H is secured in the grooves ofthe frame and the sliding channel is provided with a fold to engage saidtongue.

Fig. 5 shows a further modification in which a single-leaf spring-jambis used and a chan-. nel shown for the pulley-cord.

. Fig. 6 shows the adaptability of this invention in its various formsof construction to a metallic frame.

In Fig. 7 is shown the position taken by the leaves of the jamb when thesash is turned on its pivots and also illustrates a convenient method ofpivoting a simple pivot-window which is not intended to slide.

When this invention is applied to a window, it furnishes an absolutelywind and weather proof connection between the sash and the frame, whichcan be readily seen from the drawings. The various forms are shown toillustrate its adaptability to different constructions andmodifications.

What I claim, anddesire to secure by Letters Patent, is-

1. In combination, a window-frame provided with channels, a sash havingbeveled side stiles pivoted in said frame, metallicspring-strips,extending longitudinally of said channels and projectingsomewhat beyond the inner face of said frame, adapted to engage saidsash-stiles and be flexed and pressed back thereby as the sash is swungon its pivots.

2. In a window, the combination of a sash, sliding channels adapted tomove with the sash, jambs or closures comprising flexible metallicstrips secured in said channels and adapted to engage said sash-stiles.

3. In a window, the combination of a frame, sash-grooves in said framehaving narrow grooves in the centers thereof, slidable channels engagingsaid sash-grooves with tongues taking into said narrow grooves,spring-jambs secured in said channels and a sash pivoted to saidchannels having beveled side stiles adapted to engage said spring-jambs.

4:. A yielding jamb or closure device, comprising a strip of metal,folded to form a tongue, then bent to form an angular recess adapted toengage the beveled stiles of a sash,

then bent to form rentrant legs adapted to engage the side Walls of thesash-groove in combination with a sash provided with beveled stiles anda frame provided with grooves and saw-cuts or channels in the bottom ofthe grooves adapted to engage with said tongue.

5. In a window, the combination of a metallic frame bent to form agroove corresponding to an ordinary sash-groove, and provided with afold in said groove, a spring closure device or jamb having a tongueengaging said fold and spread to form a double leaf to engage thebeveled sash-stile then bent back to form legs adapted to engage thesides of said groove, and a sash pivoted in said frame.

. 1 JOHN HORSFIELD. Witnesses:

RoscoE A. J oHNsoN, S. P. MOKELVEY.

